摄食浒苔和人工饵料的点篮子鱼幼鱼肌肉营养成分比较

宋超, 赵峰, 刘鉴毅, 王妤, 黄晓荣, 庄平

doi:10.3969/j.issn.1006-267x.2017.06.026

动物营养学报 >

2017 , Vol. 29 >Issue 6: 2047 - 2056

DOI: https://doi.org/10.3969/j.issn.1006-267x.2017.06.026

研究简报 Short communications

摄食浒苔和人工饵料的点篮子鱼幼鱼肌肉营养成分比较

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中国水产科学研究院东海水产研究所, 农业部东海与远洋渔业资源开发利用重点实验室, 上海 200090

宋超(1980-),男,山东济宁人,博士,从事鱼类生理生态学和营养研究。E-mail:songc@ecsf.ac.cn

收稿日期: 2016-12-01

网络出版日期: 2017-06-07

基金资助

中央级公益性科研院所基本科研业务费专项资金项目（2014T15）；上海市科技兴农种业项目[沪农科种字（2016）第2-3号]

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Comparison of Nutritive Components in Muscle of Juvenile Siganus guttatus Fed with Enteromorpha prolifra and Artificial Feed

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Key Laboratory of East China Sea and Oceanic Fishery Resources Exploitation and Utilization, Ministry of Agriculture, East China Sea Fisheries Research Institute, China Academy of Fishery Sciences, Shanghai 200090, China

Received date: 2016-12-01

Online published: 2017-06-07

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摘要

本试验旨在比较摄食浒苔和人工饵料的点篮子鱼幼鱼肌肉营养成分。试验选择180尾体质健壮、规格一致的点篮子鱼幼鱼，设置2个饵料组（浒苔组和人工饵料组），分别投喂浒苔鲜样和人工饵料，每组3个重复，每个重复30尾鱼，试验期90 d。结果表明:1）浒苔组点篮子鱼幼鱼的增重率、特定生长率和相对增长率均显著低于人工饵料组（P<0.05）；浒苔组点篮子鱼幼鱼的粗蛋白质和粗灰分含量显著高于人工饵料组（P<0.05），而粗脂肪含量显著低于人工饵料组（P<0.05），水分含量在2组间无显著性差异（P>0.05）。2）浒苔组和人工饵料组点篮子鱼幼鱼的氨基酸组成基本一致，均检出17种氨基酸，必需氨基酸指数（EAAI）分别为76.72和70.05，其构成比例符合联合国粮农组织/世界卫生组织（FAO/WHO）的标准。3）浒苔组点篮子鱼幼鱼脂肪酸中二十碳五烯酸（EPA）+二十二碳六烯酸（DHA）和ω3多不饱和脂肪酸含量（ω3PUFA）含量均显著高于人工饵料组（P<0.05）。从以上结果可见，2组点篮子鱼幼鱼均含有多种营养成分，但从EAAI及EPA+DHA、ω3PUFA含量来看，浒苔组点篮子鱼的各种必需氨基酸和重要多不饱和脂肪酸营养均较优，摄食浒苔后的点篮子鱼味道鲜美，并具有较高的食用价值和保健作用。

关键词： 点篮子鱼; 营养成分; 氨基酸; 脂肪酸; 浒苔; 人工饵料

本文引用格式

宋超, 赵峰, 刘鉴毅, 王妤, 黄晓荣, 庄平 . 摄食浒苔和人工饵料的点篮子鱼幼鱼肌肉营养成分比较[J]. 动物营养学报, 2017 , 29(6) : 2047 -2056 . DOI: 10.3969/j.issn.1006-267x.2017.06.026

Abstract

This experiment was conducted to compared the nutritive components in muscle of juvenile Siganus guttatus fed with Enteromorpha prolifra and artificial feed. A total of 180 healthy juvenile Siganus guttatus with similar body weight were divided into 2 feed groups (Enteromorpha prolifra group and artificial feed group), and fed with Enteromorpha prolifra and artificial feed, respectively. Each group contained 3 replicates and each replicate contained 30 fish. The experiment lasted for 90 days. The results showed as follows:1) the weight gain rate, specific growth rate and relative growth rate of juvenile Siganus guttatus in Enteromorpha prolifra group were significantly lower than that in artificial feed group (P<0.05); the content of crude protein and crude ash of juvenile Siganus guttatus in Enteromorpha prolifra group was significantly higher than that in artificial feed group (P<0.05), however, the content of crude fat of juvenile Siganus guttatus in Enteromorpha prolifra group was significantly lower than that in with artificial feed group (P<0.05), the moisture content between two groups had no significant difference (P>0.05). 2) The composition of amino acids was similar between Enteromorpha prolifra group and artificial feed group. Seventeen kinds of amino acids were found in both Enteromorpha prolifera group and artificial feed group groups, and the essential amino acids index (EAAI) was 76.71 and 70.05, respectively. The component of the essential amino acids (EAA) met the Food and Agriculture Organization of the United Nations (FAO)/Word Health Organization (WHO) Standard. 3) The content of eicosapentaenoic acid (EPA)+docosahexenoic acid (DHA)and ω3 poly unsaturated fatty acids (ω3PUFA) of juvenile Siganus guttatus in Enteromorpha prolifra group was significantly higher than that in artificial feed group (P<0.05). In conclusion, the juvenile Siganus guttatus in two groups contains a variety of nutritional composition, however, considered the EAAI and the content of EPA+DHA and ω3PUFA, the nutrient of essential amino acids and major polyunsaturated fatty acids of juvenile Siganus guttatus is better in Enteromorpha prolifra group, Siganus guttatus fed with Enteromorpha prolifra is a nutritive and delicious food fish, and it can be an important aquaculture species with high edible value and health care function.

Key words： Siganus guttatus; nutritive component; amino acids; fatty acids; Enteromorpha prolifra; artificial feed

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